Koenigsegg has unveiled its first in-house developed electric motor and drive unit, which it says can be utilized in a variety of purposes, such electric automobile (EV) powertrains, aerospace, VTOL (vertical take-off and touchdown), marine and extra.
Developed for the Gemera, the e-motor is known as Quark and is design to be each compact – the 330 ml vitality drink can is there for scale – and light-weight. In the carmaker’s four-seater, the Quark weighs simply 30 kg, however with out the additional driveline bits, that is diminished to simply 28.5 kg.
Even so, it’s able to offering a whopping 340 PS (335 hp or 250 kW) and 600 Nm of torque. However, these peak figures can be found for under 20 seconds, following which they drop to 136 PS (134 hp or 100 kW) and 249 Nm. This isn’t a lot of a problem, as within the Gemera, the three Quark items are accompanied by the two.0 litre Tiny Friendly Giant (TFG) turbocharged three-cylinder Freevalve engine that serves up 600 PS (590 hp).
“The Quark is designed to bolster the low-speed range of the Gemera, where you need it, for brutal acceleration. The ICE (internal combustion engine) then focuses on the high-speed range. What this means in terms of performance for the Gemera is a big power surge followed by a continuous record-speed push to 400 km/h without any torque or power losses,” defined Dragos-Mihai Postariu, the corporate’s electric motor design lead.
To obtain these outputs, Koenigsegg relooked on the fundamentals of magnetism, supplies, cooling and packaging, combining each radial and axial flux constructions (to make a “raxial flux” topology) to offer an excellent stability between energy and torque. The outcome, based on the corporate, is an e-motor that has the most effective torque to energy to weight ratio within the trade.
Koenigsegg’s e-motor improvement lead András Székely mentioned the Quark has a shaft made out of 300M metal sometimes utilized in motorsports and aerospace, whereas direct cooling was chosen for its effectivity and compact design. Even the rotor makes use of the corporate’s Aircore hole carbon-fibre expertise that’s featured within the carmaker’s wheels, steering wheel and seats.
“The Quark is unique in its high efficiency in combination with its class-leading torque-to-power-to-rpm-to-weight matrix. This means, when using the Quark in applications such as marine, aircraft or VTOL, there is no need for a step-down transmission, instead direct drive can be achieved, as the rpm of the motor is right from the get-go,” commented the corporate’s CEO and founder, Christian von Koenigsegg.
While one Quark is already spectacular, Koenigsegg additionally went forward and mixed two to create the Terrier. This setup sees the addition of David, the corporate’s silicon carbide (SiC) six-phase inverter that weights simply 15 kg, has a quantity of 10 litres (once more, an vitality drink for scale), operates on 850 volts and can ship 1,300 ARMS AC, with as much as 750 kW oof energy. There are two David items within the Gemera for 12 phases and an output of 1.5 MW.
The Terrier – a two-Quark-one-David configuration – is so named due to the canine breed which are “characterised by their small, energetic and fearless demeanour.” Weighing simply 85 kg, the drive unit produces the equal of 680 PS (670 hp or 500 kW) and 1,100 Nm, with the flexibility to manage every motor individually to permit for torque vectoring.
“The Terrier surpasses today’s drive units, needing only one inverter (instead of two), as David’s 6-phase lends three phases to each Quark, thereby drastically reducing weight, size and components. Furthermore, given the Quark’s flat packaging, David can neatly slot between two Quarks to create a square super-dense package,” the corporate mentioned.
“Finally, as the Quarks give massive power and torque at reasonable rpms, only small low-ratio highly efficient planetary gear sets are needed at each output. The compact and unique packaging allows the Terrier to be elasto-bolted to the monocoque or chassis directly – thus allowing for design, engineering and luxury accommodations previously not possible. This trait also potentially cuts away the complexity of added subframes or weight,” it added.